The insides of the RCA jacks are color coded for the component video, composite video, and stereo audio, so you can easily match the right connectors for your video installation. Note that this requires the use of a single-gang, low-voltage mounting bracket (sold separately). Important Ssafety Warning! When running cables through the walls, always use cables rated for in-wall, riser, or plenum use. These ratings ensure that the cable meets fire safety regulations. Failure to use in-wall rated cables could nullify any insurance claims in the event of a fire, even if they were not the cause of the fire.